scholarly journals Influence of Zinc Impregnated Urea on Growth, Yield and Grain Zinc in Rice (Oryza sativa)

2016 ◽  
Vol 18 (06) ◽  
pp. 1195-1200 ◽  
Author(s):  
Qudsia Nazir ◽  
Muhammad Arshad ◽  
Tariq Aziz ◽  
Muhammad Shahid
Keyword(s):  
Oryza Sativa ◽  
Growth Yield ◽  
Grain Zinc

scholarly journals Effects of lead on growth, yield and mineral nutrition of rice (Oryza sativa L.)

2020 ◽  
Vol 5 (2) ◽  
pp. 83-92
Author(s):  
P Jasmin ◽  
WZ Prian ◽  
MN Mondol ◽  
SM Ullah ◽  
AS Chamon
Keyword(s):  
Oryza Sativa ◽  
Lead Concentration ◽  
Oryza Sativa L ◽  
Poultry Litter ◽  
Growth Yield ◽  
Lead Toxicity ◽  
Dry Weight ◽  
Cow Dung ◽  
Lead Uptake ◽  
Positive Effects

A pot experiment was conducted to evaluate the effect of lead (50, 100, 150 and 200 mg kg-1) on rice (Oryza sativa) and remediation of metal contamination by applying cow dung, poultry litter and lime to alleviate lead toxicity. The lengths, fresh and dry weights of shoot, root and macronutrients decreased with increasing level of lead compared to the control. The maximum reduction was observed in the pots treated with 200 mg kg-1 lead (19.50 and 20.03% for grain, 17.15 and 19.75% for shoot and 17.96 and 30.02% for root on the fresh and dry weight, respectively). The highest reduction in macronutrient content was observed in 200 mg kg-1 lead treated pot where N, P, K, Ca and Mg concentrations were reduced by 31.14, 47.44, 22.49, 21.84 and 31.58% for shoot and 28.95, 55.64, 37.5, 49.33 and 23% for root, respectively. On the other hand lead concentration in roots and shoots were increased with increasing lead treatment compared to the control. Treatments of the amendments (cow dung, poultry litter and lime) had positive effects though cow dung outshining the rest of them. This particular organic matter had considerable decreasing impacts in lead uptake by rice. Cow dung treated pots increased fresh and dry weight by 31.48 and 32.07% for grain, 14.08 and 35.30% for shoot and 57.09 and 34.48% for root compared to pot treated with 100 mg kg-1 lead. Cow dung remediated lead concentration by 48.85, 65.00 and 62.00% for grain, shoot and root, respectively. J. Biodivers. Conserv. Bioresour. Manag. 2019, 5(2): 83-92

Azospirillum amazonense inoculation: effects on growth, yield and N2 fixation of rice (Oryza sativa L.)

2007 ◽  
Vol 302 (1-2) ◽  
pp. 249-261 ◽  
Author(s):  
Elisete Pains Rodrigues ◽  
Luciana Santos Rodrigues ◽  
André Luiz Martinez de Oliveira ◽  
Vera Lucia Divan Baldani ◽  
Kátia Regina dos Santos Teixeira ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
N2 Fixation ◽  
Oryza Sativa L ◽  
Growth Yield ◽  
Azospirillum Amazonense

scholarly journals Peningkatan Hasil Padi (Oryza sativa L.) dan Kadar Zink dalam Beras melalui Aplikasi Zink Sulfat Heptahidrat

2018 ◽  
Vol 45 (3) ◽  
pp. 243
Author(s):  
Maulana Hamam ◽  
Bambang Pujiasmanto ◽  
Dan Supriyono
Keyword(s):  
Oryza Sativa ◽  
Grain Yield ◽  
Zinc Sulfate ◽  
Rice Plant ◽  
Zinc Sulphate ◽  
Zinc Concentration ◽  
Oryza Sativa L ◽  
Growth Data ◽  
Sulfate Heptahydrate ◽  
Grain Zinc

Zinc is an essential micro-nutrients for humans and plants. Zinc on humans is obtained from food, especially rice. This research studied the effect of zinc sulfate heptahydrate spraying application, the effect of zinc sulphate heptahydrate enriched urea application, and the interaction of both, on yield and rice zinc grain concentration in Ciherang varieties. The research was carried out by RCBD. The first factor was without spraying zinc sulfate, spraying 75 g ha-1 zinc sulfate heptahydrate and spraying 150 g ha-1 zinc sulfate heptahydrate. The second factor was without zinc sulfate enriched urea, urea enriched by 7.5 kg ha-1 zinc sulfate heptahydrate, and urea enriched by 15 kg ha-1 zinc sulfate heptahydrate. The parameters observed were grain yield, grain zinc concentration, and rice plant growth. Data were analyzed by analysis of variance at 5% and DMRT test at 5%. The results indicated that spraying 75 g ha-1 zinc sulfate heptahydrate increased yield of rice up to 13%, urea enriched by 7.5 kg ha-1 zinc sulfate heptahydrate increased grain yield zinc concentration up to 33%, Combination of spraying  75 g ha-1 zinc sulfate heptahydrate and urea enriched by 7.5 kg ha-1 zinc sulfate heptahydrate can’t increased the yield and zinc grain concentration.<br /><br />Keywords: rice, urea, zinc, zinc sulfate heptahydrate<br /><br />

scholarly journals Effect of nitrogen scheduling in early and late planted medium duration rice (Oryza sativa L.)

2021 ◽  
Vol 23 (3) ◽  
pp. 279-285
Author(s):  
Keyword(s):  
Oryza Sativa ◽  
Growth Parameters ◽  
Oryza Sativa L ◽  
Growth Yield ◽  
Research Station ◽  
Dry Matter Accumulation ◽  
N Application ◽  
Yield Attributes ◽  
Late Planting ◽  
Four Levels

A field experiment on rice (Oryza sativa L.) crop was conducted at Rice Research Station, Kaul (Kaithal), India during kharif season of 2017 and 2018 to evaluate the optimum schedule of nitrogen application in the rice grown under early and late planting conditions. The treatments consisted of three timings of transplanting (3rd week of June, 1st week of July and 3 rd week of July), four levels of N (90, 120, 150 and 180 kg Nha-1) and four timings of N fertilizer application (½ at transplanting + ½ at 21 DAT, ½ at 21 DAT + ½ at 42 DAT, 1/3 at transplanting + 1/3 at 21 DAT + 1/3 at 42 DAT and LCC based N supply) and were laid out in split-plot design with transplanting time and N levels in main plots and N application time in sub-plots. The growth parameters (plant height, number of tillers/m2 and dry matter accumulation/m2), yield attributing characters (number of panicles/m2 and grains/panicle) and yield (grain and straw yield) of rice crop reduced significantly under late planting (3rd week of July) as compared to that under the two earlier plantings (3rd week of June and 1stweek of July) whereas the two earlier plantings were at par in respect of these parameters. The growth, yield attributes and the yield increased with every increase in N application rates but the increase was significant up to 150 kg Nha-1. The highest yield was (7.33 tha-1), however, obtained with the crop transplanted early (up to1st week of July) and supplied with 150 kg Nha-1.Application of N in three equal splits (at 0, 21 and 42 DAT or as per LCC schedule), being at par, resulted into higher yield (grain and straw) than the N application in two equal splits. The net returns and B: C ratio increased appreciably with increase in N application levels upto 150 kg Nha-1 obviously due to increase in crop yield.

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